uint8_t eew)
{
int8_t emul = eew - s->sew + s->lmul;
- return (emul >= -3 && emul <= 3) &&
- require_align(vs2, emul) &&
- require_align(vd, s->lmul) &&
- require_nf(vd, nf, s->lmul);
+ bool ret = (emul >= -3 && emul <= 3) &&
+ require_align(vs2, emul) &&
+ require_align(vd, s->lmul) &&
+ require_nf(vd, nf, s->lmul);
+
+ /*
+ * All Zve* extensions support all vector load and store instructions,
+ * except Zve64* extensions do not support EEW=64 for index values
+ * when XLEN=32. (Section 18.2)
+ */
+ if (get_xl(s) == MXL_RV32) {
+ ret &= (!has_ext(s, RVV) && s->ext_zve64f ? eew != MO_64 : true);
+ }
+
+ return ret;
}
/*